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Diffstat (limited to 'contrib/ffmpeg/libavutil/crc.h')
| -rw-r--r-- | contrib/ffmpeg/libavutil/crc.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavutil/crc.h b/contrib/ffmpeg/libavutil/crc.h new file mode 100644 index 000000000..1f6431992 --- /dev/null +++ b/contrib/ffmpeg/libavutil/crc.h @@ -0,0 +1,42 @@ +/* + * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CRC_H +#define CRC_H + +typedef uint32_t AVCRC; + +#if LIBAVUTIL_VERSION_INT < (50<<16) +extern AVCRC *av_crcEDB88320; +extern AVCRC *av_crc04C11DB7; +extern AVCRC *av_crc8005 ; +extern AVCRC *av_crc07 ; +#else +extern AVCRC av_crcEDB88320[]; +extern AVCRC av_crc04C11DB7[]; +extern AVCRC av_crc8005 []; +extern AVCRC av_crc07 []; +#endif + +int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size); +uint32_t av_crc(const AVCRC *ctx, uint32_t start_crc, const uint8_t *buffer, size_t length); + +#endif /* CRC_H */ + |